Explosive-engine.



D. M. TULLOGH. EXPLOSIVE ENGINE.

APPLICATION FILED MAY 31, 1912.

Patented F6113, 19M.

3 SHEETS-SHEET l INVENTOI? David M.Tulloch I ATTORNEYS D. M. TULLOOH. EXPLOSIVE ENGINE. API-LICATION FILED MAY 31, 1912.

Patefited Feb. 3, 1914.

IA/E8858 Ill/MENTOR 9Q? A David M. TuHoch W By W ATTORNEYS D. M. TULLOCH. EXPLOSIVE ENGINE. APPLICATION FILED MAY 31, 1912.

Patented Feb. 3, 19M.

3 SHEETSSHEET 3.

R 8 mm M NO N El. R HI 0 W. U

re -ran IfitlVID M. TULLOCH, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO ERIC 1'.

CHRISTENSEN, F BROOKLYN, NEW YQRK.

x'rnosrvn-nnemn.

Specification of Letters Patent.

ratented Feb. 3, 1914..

Application filed may 31, 1912. Serial No. 700,636.

To all whom it may concern:

Be it. known that 1, DAVID M. TULLOCH, a citizen of the United States, and a resident of the city of'New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and Im-.

proved Explosive-Engine. of which the followingisa full, clear, and exact description.

My invention relates generally to explosive engines and, more particularly, it is directed to an engine of this type having an improved means of control of intake and exhaust.

The principal design of the present invention to provide a new and improved valve mechanism for controlling the intake and exhaust of'cylinder gases, the said mechanism being positively actuated by the reciprocating piston.

A further'design of the invention is to provide an engine which, as an entirety, and especially in the construction and operation of the valve mechanism, will present a con struction doing away with the use of separately driven cams or separately actuated valve rods, the mechanism being controlled.

directly by the piston.

Advantages of the invention, following from the preferred form of the engine illustrated, will appear as the description thereof proceeds, the features of construction, producing new and useful results, being comprehended within the spirit and scope of the claims.

Reference is to be had to the accompanying drawings, forming part of this specification,- in which similar characters of reference denote corresponding parts in'all the views, and in which Figure 1 is a side view of a four-cylinder engine embodying my invention; Fig. 2 is a vertical sectional view thereof; Fig. 3 is a horizontal sectional view on the line 3-3 of Fig. 2; while Fig. 4 is a perspective view of one of the valves.

the cylinder and casing'being designed to carry a suitable cooling-medium, the cylinder and the casing being formed of a single casting if so desired. l Reciprocating within the cylinder is a piston 4 of extended length, whereby the cylindrical bearing portion 5 results, the piston being provided with a transversely extending pin 6 on which the pitman 7 is mounted, the other end of the pitman being in pivotal engagement with a crank pin, or rod, or disk 8. The particular size of the piston and the cylinder will depend primarily upon good" design, while the material and length of the pitman may be varied, depending on such factors, the outer end of the pitman being connected with the crank pin, or r'od by any suitable form of boxreceiving the pin or rod.

The head of the cylinder is provided with a suitable threaded opening into which the ordinary type of spark plug 9 is entered, the spark plug forming a terminal for a lead 10 from .a suitable and convenient source of current. Adjacent the head end of the cylinder andfipreferably at diametrically opposite points are ports 11, 11, which ports are designed to permit the intake and exhaust of gases; intermediate the open end of the cylinder and the said ports and preferably at diametrically opposite sides are the longitudinally extending slots or recesses 12, 12, the said piston 4 being provided with projections extending at 9. nor

mal angle, such as pins 13,- 18*,these pins reciprocating within the slots or recesses as the piston moves back and forth within the cylinder.

Referring particularly toFig. 3, it will be noted that at opposite sides of the cylinder and preferably integral therewith are smaller structures 14, 14*", which structures. I

are preferably of circular conformation, belng tubular 1n their nature, which structures receive and contain the intake and exhaust valves 15, 15 the particular form of is provided with an opening 16, the central portion of the valve adjacent this end being recessed, as at 17, the said opening and recess being communicating; on the outside is set forth a particular emho'cli fem-cylinder engine,-it will be I nature conveniently lends mi" pm Wtion oil the cylinders and structures in a single egml construction, where- 'ne labor of asse1nblin the Literially reduced, ell o; the neon such construction be- 9; so tied together eflicient operation promo l. order to provide for lnbri- 0 tion of the valves and the cylinders, this integral casting at proper places may be movie 1 with oil or grease cups 23, or any vehle or convenient systemof lubriee- 30 may be employed. The integral struchoclying the cylinders and valve tlil g structures may be conveniently oit on two stenclercls, one 01'"? which 24 n. in 1, the stenclard being on any desirable support and held J inconvenient manner. These l v endercls {USO pi'ovicle the necessary beererenee .1 i g e i f 5 25 for the main driving shaft 26 which :25 and botte J embodies erenh: pin, or rod, or disk. l1 lj F om a consideration of the structure I show the drawings, it is obvious that many desirable results follow the use of the ex, t forth; the moving parts are ch. is of advantage in main- 3, which promotes effi n; the moving" parts of cool, clue to the omission site *mlve nctimting niechnoiselessness; finally,

ty presents a. struca con ."eiel sense, is desirone given. power may be cost than another engine of int made up of many more o; the openn'zgs e Mien wi n on need a time clescrihecl my invention, I chum es new, desire to secure by Letters Pa ten" 1. The eoinhinetion 0; a power cylinder 119 having a piston reciprocating therein, with e nlumlity of valves for controlling the wl exhaust gases, the valves emcam grow s, together with means h ton and engaging the 5 eating move s eturning moveeompeising a n th mi, the

"led with iwzalgisrts ment at piston imparts cnnsxiantly turning movement is the said valves An I l'osive engine er bcdying a power cylind 1" with a recipz'ocatins piston 'ahereim's pox element driven by piston, and rs oluble. vaivs element t0 one side 0% aslcyfiindsr for centreflin'g the admission Qfgas theme, and spsra'aively con.- nected with the pistes. independently of said driven element; she movemeni of the piston ip'azting s t-u'r' ing movement to she said valve element. v

5. An explqsive engine cemprising a power cylinder hsvingf's reciprocatisg piston tfierein, a jaowepelemem driven by the pislasn, the cylinder being provided with pnz-ts s piumlity of indepsndent revolubie valves lmving' Gpsnings therein adapted to r'egisisl at determinsd' ,intaz'vsis with Ehe said poris, the said waives being in communicaicn with a, source of suyplv 1nd a medium to receive the exhaust, ans v sans indepsnrient 01f sa-id powsr engzg- 531g ftihe pistes: 111i, siss S;1E.d m'sfivss gwhelfsb the 2302 21116212 the sis-3011 W indysndest msvsm-ents said Xsivss, 4

ZEUS? La pmrahiy 01' she lntsks sax-1%,? by ressses and n Us rec1pmcamon turning movement during speratmn 0 8. The 20331 plurality of valves "E01- conisrolling the intake and exhaust gases, each of the valves being pmvided s cam groove, the said cylinder being; grovicle. with recesses; and pins carr'e; by the p'stozi passing through "mks rscesses'an. gs in the said grecwss, Whsreby the has sm-a "Est-011 imgmris the vsfles.

9. A11 ermlosivs engl .e,smb0c1yi .gspewe'r cyiinderhaving a 'swn thersom a pewer siez'nsnt'ariven by a piston, and a valve commzmfling communicatisn with $31.16 Cy finder ssnsrofiing smissisn of the simrg'e til-stats szu vslvs bein spam? gist-0n lllClEPiillQ- taming movement t0 of a yaw-er cylinder I havmg s pisun 11g thsi'em, a'

ans-myth movement 0% 

